Film Gimp is a video painting and rotoscoping tool — the third-dimension brother to Gimp, which is a popular open source alternative to Photoshop. Given Film Gimp’s adoption by and contributions from the special effects industry, this may spell the end of high-priced, low-volume commercial competitors like Pinnacle’s Commotion.
According to DesktopLinux.com, programmers at studios like ILM, Imageworks, Rhythm & Hues and Sony Pictures are contributing to its development. Interestingly, one of the original sponsors of Film Gimp development was Silicon Grail, which was acquired by Apple. | DesktopLinux.com article | Film Gimp project page